1663323246 has 96 divisors (see below), whose sum is σ = 4189872960. Its totient is φ = 472614912.

The previous prime is 1663323241. The next prime is 1663323253. The reversal of 1663323246 is 6423233661.

1663323246 is a `hidden beast` number, since 16 + 633 + 2 + 3 + 2 + 4 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1663323246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663323241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150750 + ... + 161406.

It is an arithmetic number, because the mean of its divisors is an integer number (43644510).

Almost surely, 2^1663323246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1663323246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094936480).

1663323246 is an abundant number, since it is smaller than the sum of its proper divisors (2526549714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663323246 is a wasteful number, since it uses less digits than its factorization.

1663323246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10730 (or 10727 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 1663323246 is about 40783.8601164725. The cubic root of 1663323246 is about 1184.8377580582.

The spelling of 1663323246 in words is "one billion, six hundred sixty-three million, three hundred twenty-three thousand, two hundred forty-six".